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Table 2 Difference of pre-test and post-test functional fitness within group

From: Impacts of tai chi exercise on functional fitness in community-dwelling older adults with mild degenerative knee osteoarthritis: a randomized controlled clinical trial

Functional fitness parameter

CON group (N=32)

TCE group (N=36)

Mean difference (95% CI)

p

d

Mean difference (95% CI)

p

d

30-s arm curl test (no. of times)

-3.03

(-4.46, -1.60 )

1.33*10-4

0.72

2.13

(0.71, 3.54 )

.005

0.54

30-s chair stand (no. of times)

-4.61

(-5.69, -3.53 )

2.90*10-10

1.45

0.16

(-1.14, 1.45 )

.807

0.04

2-min step test (no. of times)

-24.89

(-34.06, -15.72 )

3.41*10-6

0.92

20.34

(10.10, 30.59 )

3.19*10-4

0.72

Chair sit-and-reach test (cm)

-3.79

(-5.71, -1.87 )

3.02*10-4

0.67

1.28

(-0.02, 2.57 )

.053

0.36

Back-scratch flexibility test (cm)

1.26

(-2.18, 4.70 )

.461

0.12

1.70

(0.51, 2.89 )

.006

0.52

Single-leg stand with eyes opened (s)

-20.69

(-30.38,-11.01 )

1.16*10-4

0.72

-3.21

(-8.51, 2.09 )

.226

0.22

Single-leg stand with eyes closed (s)

-1.97

(-2.97, -0.97 )

3.04*10-4

0.67

1.60

(0.77, 2.43 )

4.66*10-4

0.69

Functional-reach test (cm)

-4.97

(-6.61, -3.34 )

4.68*10-7

1.03

1.67

(0.03, 3.32 )

.046

0.37

8-foot up-and-go test (s)

1.98

(1.29, 2.67 )

1.26*10-6

0.97

-1.33

(-2.10, -0.56 )

.001

0.62

10-m walk test (s)

0.06

(-0.47, 0.59 )

.816

0.04

0.02

(-0.45, 0.49 )

.936

0.01

  1. CI confidence interval
  2. bold p value represents reaching the significant level (p<.05)